78750059 has 2 divisors, whose sum is σ = 78750060. Its totient is φ = 78750058.

The previous prime is 78750043. The next prime is 78750083. The reversal of 78750059 is 95005787.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (95005787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78750059 - 2⁴ = 78750043 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 78749998 and 78750025.

It is not a weakly prime, because it can be changed into another prime (78756059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39375029 + 39375030.

It is an arithmetic number, because the mean of its divisors is an integer number (39375030).

Almost surely, 2^78750059 is an apocalyptic number.

78750059 is a deficient number, since it is larger than the sum of its proper divisors (1).

78750059 is an equidigital number, since it uses as much as digits as its factorization.

78750059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

The square root of 78750059 is about 8874.1229989222. The cubic root of 78750059 is about 428.6310511600.

The spelling of 78750059 in words is "seventy-eight million, seven hundred fifty thousand, fifty-nine".